WO2008014749A1 - Lifting device - Google Patents
Lifting device Download PDFInfo
- Publication number
- WO2008014749A1 WO2008014749A1 PCT/DE2007/001257 DE2007001257W WO2008014749A1 WO 2008014749 A1 WO2008014749 A1 WO 2008014749A1 DE 2007001257 W DE2007001257 W DE 2007001257W WO 2008014749 A1 WO2008014749 A1 WO 2008014749A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tube
- locking
- support tube
- spindle nut
- lifting
- Prior art date
Links
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
- B60S9/02—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting
- B60S9/04—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting mechanically
- B60S9/06—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting mechanically of screw-and-nut type
- B60S9/08—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting mechanically of screw-and-nut type the screw axis being substantially vertical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
Definitions
- the present invention relates to a lifting device, in particular seat post or the like, with a shaft tube and a support tube movable with respect to the shaft tube, wherein a lifting gear is arranged on the shaft tube, which has a drive shaft device for connecting a drive device and an output shaft device for driving a lifting spindle arranged in the support tube, which is supported at one end to a shaft arranged in the pressure plate and cooperates with the running end with a spindle arranged in the support nut.
- Lifting devices of the type mentioned in the introduction are used in the application as seatposts, for example as height-adjustable support devices for so-called “semitrailers", if these are parked independently of a towing vehicle
- the further interface in the power flow is between the running end of the lifting spindle and the spindle nut to the support tube out educated. Since a relative movement of the lifting spindle takes place in the spindle nut at the same time as the power transmission, the spindle nut is subjected to particular mechanical stresses which may necessitate replacement of the spindle nut.
- it is of course essential for the smooth operation of the lifting device that the mechanical connection of the spindle nut to the support tube is reliable and keeps up the large loads occurring.
- the present invention is therefore based on the object to propose a lifting device which is designed so that the spindle nut is arranged mechanically safe in the support tube, is easily replaceable and also can be installed with little manufacturing effort in the support tube.
- the spindle nut is provided with a locking collar with at least two locking devices which cooperate with formed on the tube wall of the support tube latch traps, such that with coaxial alignment of the spindle nut with the support tube, the spindle nut in a mounting rotational position in the support tube is inserted, and can be converted by twisting about the longitudinal axis of the support tube in a locking position in which the locking devices come into engagement with the latch traps.
- the inventively designed lifting device ensures due to the interpenetrating arrangement of the locking devices and the tube wall of the support tube a particularly resilient connection between the spindle nut and the support tube.
- the installation of the spindle nut is alone at the location of its seat in the support tube due to the locking effect feasible without the aid of special tools or complementary connecting means, ie without mechanical fasteners or the use of joining technology, such as welding. It follows also that a particularly easy interchangeability of the spindle nut is ensured, in the event that premature wear of the spindle nut should be detectable.
- the locking collar on a peripheral contour with four pairs of mutually opposite guide edges, which are spaced apart according to the inner dimension of the square tube formed as a support tube, and four formed in the corner regions of the locking collar locking edges.
- the latch traps are formed by slot-shaped recesses in opposite tube wall portions of the support tube.
- the bolt collar acts despite a conceivably simple designed peripheral contour and designed in the simplest possible way latch bolts as a reliable locking device for the spindle nut in the support tube.
- the circumferential contour of the locking collar is formed as an octagon contour, such that the locking edges are formed by flattened corners of the locking collar, necessary for generating the locking effect relative rotational movement of the spindle nut about the longitudinal axis of the support tube is possible without the geometric design
- the circumferential contour could have undercuts that could hinder the locking movement.
- a particularly simple realization of a spindle nut, which agrees the function of the spindle nut with a locking device is possible if a threaded collar with internal thread is arranged to form a nut thread on the bolt collar.
- the support webs allow for a mechanical stabilization of the composite of the threaded collar to the bolt collar.
- the Stauerste- ge for centering the spindle nut in its locking position in the support tube.
- the threaded collar is provided with a trough-shaped recess at its upper edge.
- Figure 1 is a lifting device in side view.
- FIG. 2 shows the lifting device shown in FIG. 1 in a longitudinal section along the section line II-II in FIG. 1;
- FIG. 3 shows a shaft tube of the lifting device shown in Figure 1 in cross section.
- FIG. 4 shows an alternative cross-sectional configuration of the shank tube cross-section illustrated in FIG. 3;
- FIG. 5 is a side view of a spindle nut inserted in a mounting rotational angle position in a support tube of the lifting device;
- FIG. 5 is a side view of a spindle nut inserted in a mounting rotational angle position in a support tube of the lifting device;
- Fig. 6 the spindle nut shown in Figure 5 in plan view.
- FIG. 7 shows the spindle nut shown in FIG. 5 in the locking position in side view
- FIG. 3 embodiment of a U-shaped shaft tube profile 13 and one of the profile 13 to a square tube complementary mounting plate 14 composed, which also forms the rear wall of the shaft tube 1 1.
- the mounting plate 14 is used for connection to a vehicle chassis and has laterally formed terminal strips 15, 16, a plurality of mounting holes 17, which allow a connection to differently shaped vehicle chassis or in different mounting heights on a vehicle chassis.
- the support tube 12 received in the shaft tube 11 extends substantially over the entire length of the shaft tube 11.
- the shaft tube 11 has a pressure plate, as it were, at the end 18, which serves to receive an upper Hubspindelendes 19 of a lifting spindle 20 which extends on a longitudinal axis 21 of the lifting device 10 and the support tube 12.
- At the upper Hubspindelende 19 is also located on a shaft collar 22 rotatably mounted Hubspindeltechnikrad 23, which serves to drive the lifting spindle 20 and is supported together with the lifting spindle 20 via a thrust bearing 24 on the pressure plate 18.
- a spindle nut 25 is arranged, which is rotationally rigidly connected to the support tube 12 at its periphery, so that a rotation of the lifting spindle 20 as a result of a drive of the Hubspindeliererads 23 via the threaded engagement of the lifting spindle 20 with the spindle nut 25 depending on the direction of rotation Extending or retracting the support tube 12 from the shaft tube 1 1 addition or effected in this.
- Hubspindeliererads 23 To drive the Hubspindeliererads 23 is arranged below the pressure plate 18 Hubgetriebe 26, which includes a drive shaft assembly 27 and an output shaft assembly 28 which acts on the Hubspindeltechnikrad 23 includes.
- a foot device 29 At the lower end of the support tube 12 is a foot device 29, which has a connected to a lower end 30 of the support tube 12 foot receptacle 31 and connected to the foot receptacle 31 pivot foot 32.
- FIGS. 5 and 6 which show the spindle nut 25 inserted in the assembly rotational angle position in the support tube 12, the spindle nut 25 has a locking collar 90, which is provided with an octagonal peripheral contour 91.
- a threaded collar 92 whose bore wall is provided with a spindle nut thread 93 corresponding to the thread of the lifting spindle 20, is located on the latch collar 90.
- radially outwardly extending support webs 94, 95, 96 and 97 are provided which provide inter alia for a secure mechanical connection of the threaded collar 92 to the latch collar 90.
- the locking collar 90 is formed as an octagon contour with pairwise opposite guide edges 98, 99, 100 and 101, which are each spaced from each other according to the internal dimension i of the support tube 12 formed here as a square tube ,
- the guide edges 98 to 101 when inserting the spindle nut 25 from above into the support tube 12 in the mounting angular position of the spindle nut 25 for radial guidance during the execution of the displacement v to the spindle nut 25 from an upper end 102 of the support tube 12 in its axial locking position V in which the locking collar 90 is in a common plane with formed in the pipe wall of the support tube 12 locking recesses 103, 104, 105 and 106.
- the bolt collar 90 has flattened corners for the formation of four bolt edges 107, 108, 109 and 110, likewise arranged in pairs opposite one another.
- the locking edges 107 to 110 each extend transversely to an associated support web 94 to 97 and together with this form a respective locking shoulder 111.
- the threaded collar 92 of the spindle nut 25 is provided at its upper edge with a trough-shaped recess 114 which can be used for receiving a lubricant reservoir.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Transmission Devices (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Noodles (AREA)
- Advancing Webs (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Magnetic Heads (AREA)
- Micromachines (AREA)
Abstract
Description
Claims
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07785631.8A EP2046611B2 (en) | 2006-07-31 | 2007-07-12 | Lifting device |
| AT07785631T ATE466753T1 (en) | 2006-07-31 | 2007-07-12 | LIFT DEVICE |
| DE502007003672T DE502007003672D1 (en) | 2006-07-31 | 2007-07-12 | LIFTING |
| CA2659434A CA2659434C (en) | 2006-07-31 | 2007-07-12 | Lifting device |
| ES07785631T ES2343284T5 (en) | 2006-07-31 | 2007-07-12 | Lifting device |
| CN2007800280528A CN101495347B (en) | 2006-07-31 | 2007-07-12 | Lifting device |
| PL07785631T PL2046611T5 (en) | 2006-07-31 | 2007-07-12 | Lifting device |
| US12/375,749 US8388023B2 (en) | 2006-07-31 | 2007-07-12 | Lifting device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006035917.8 | 2006-07-31 | ||
| DE102006035917A DE102006035917C5 (en) | 2006-07-31 | 2006-07-31 | lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008014749A1 true WO2008014749A1 (en) | 2008-02-07 |
Family
ID=38608362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2007/001257 WO2008014749A1 (en) | 2006-07-31 | 2007-07-12 | Lifting device |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US8388023B2 (en) |
| EP (1) | EP2046611B2 (en) |
| CN (1) | CN101495347B (en) |
| AT (1) | ATE466753T1 (en) |
| CA (1) | CA2659434C (en) |
| DE (2) | DE102006035917C5 (en) |
| ES (1) | ES2343284T5 (en) |
| PL (1) | PL2046611T5 (en) |
| RU (1) | RU2401753C1 (en) |
| WO (1) | WO2008014749A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005034554B4 (en) * | 2005-07-23 | 2008-07-03 | Jost-Werke Gmbh | Landing gear and assembly process |
| DE202009000634U1 (en) * | 2009-01-20 | 2009-06-04 | Riedl, Reinhold, Dipl.-Ing. | Height-adjustable support for semi-trailer or the like. |
| IT1395539B1 (en) * | 2009-08-04 | 2012-09-28 | Simol S P A | FOOT OF FOOT |
| DE102012205039B4 (en) | 2012-03-29 | 2015-11-05 | Saf-Holland Gmbh | Height-adjustable support device for semi-trailers |
| DE102013022132A1 (en) * | 2013-12-24 | 2015-06-25 | Hubert Koschinat | Telescopic support with spindle and its drive via ring gear with integrated thrust bearing for load support |
| US11628697B2 (en) * | 2016-11-07 | 2023-04-18 | William K Chapin | Hydraulic gooseneck trailer coupler system and method |
| US20190315319A1 (en) * | 2018-04-15 | 2019-10-17 | Craig Williams | Systems, Devices, and/or Methods for Managing Truck Trailers |
| CN109455167A (en) * | 2018-12-24 | 2019-03-12 | 青岛博泰汽车零部件有限责任公司 | A kind of elevating ram lower bracket |
| DE102020133918A1 (en) | 2020-12-17 | 2022-06-23 | MIKU GmbH | support device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19836635A1 (en) * | 1998-08-13 | 2000-02-24 | Jost Werke Ag | Load-bearing prop for fifth wheel of semitrailer incorporates motor or hand winding gear with spur reduction gear and bevel drive for spindle raising and lowering foot |
| US6099016A (en) * | 1997-07-21 | 2000-08-08 | The Binkley Company | Landing gear |
| US20030089898A1 (en) * | 2001-11-15 | 2003-05-15 | Straw Shane A. | Screw nut holder for heavy-duty jack assembly |
Family Cites Families (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3214159A (en) * | 1963-12-16 | 1965-10-26 | Hart Le Roy | Rapid clamp |
| US3338554A (en) * | 1965-05-03 | 1967-08-29 | Frank T Gostomski | Screw actuated jack means |
| US3421778A (en) * | 1966-11-18 | 1969-01-14 | Utility Trailer Mfg Co | Dual purpose dolly for semitrailers |
| FR2495244A1 (en) * | 1980-12-01 | 1982-06-04 | Comet | IMPROVEMENTS IN DEVICES FOR ATTACHING OBJECTS ON ACCESSIBLE SHEETS ON SINGLE SIDE |
| DE3119359C2 (en) | 1981-05-15 | 1983-02-24 | Jost-Werke GmbH, 6078 Neu Isenburg | Telescopic support device for heavy loads, in particular semi-trailers |
| DE3604097C2 (en) * | 1986-02-08 | 1994-10-27 | Jost Werke Gmbh | Telescopic support device for a semitrailer |
| US5238266A (en) | 1991-04-16 | 1993-08-24 | Jost International Of Grand Haven, Michigan | Landing gear for semitrailers |
| EP0688687B1 (en) * | 1994-03-30 | 2000-05-31 | FISCHER, Friedrich | Lifting device |
| US5538225A (en) | 1994-03-31 | 1996-07-23 | Jost International Of Grand Haven Michigan | Landing gear for semitrailers |
| US5435523A (en) * | 1994-10-25 | 1995-07-25 | Wesbar Corporation | Trailer tongue jack |
| RU2092426C1 (en) * | 1995-07-06 | 1997-10-10 | Юрий Викторович Сидякин | Electromechanical lift |
| DE19616704C2 (en) | 1996-03-29 | 1998-07-02 | Haacon Hebetech Gmbh | Drive device for a lifting device, in particular a seat post |
| ATE339332T1 (en) * | 1998-07-17 | 2006-10-15 | Haacon Hebetech Gmbh | SWIVEL FOOT FOR GROUND SUPPORT FOR A LIFTING DEVICE |
| DE19839359C2 (en) | 1998-08-28 | 2000-07-27 | Jost Werke Ag | Support device |
| DE19955998C5 (en) | 1999-11-20 | 2010-12-16 | Saf-Holland Verkehrstechnik Gmbh | Height-adjustable support for semitrailers |
| GR1004000B (en) | 2001-02-20 | 2002-09-19 | Τερζης Παναγιωτη Γεωργιος | Car jack |
| DE10205286C1 (en) * | 2002-02-05 | 2003-09-18 | Jost Werke Gmbh & Co Kg | support jack |
| ATE484432T1 (en) | 2002-04-02 | 2010-10-15 | Saf Holland Inc | CHASSIS AND METHOD OF CONSTRUCTION THEREOF |
| RU2220090C1 (en) | 2002-05-24 | 2003-12-27 | Косенко Михаил Юрьевич | Automobile jack |
| US6874764B2 (en) * | 2002-08-30 | 2005-04-05 | Cequent Trailer Products, Inc. | Mechanical screw jack having stroke limiting nut |
| DE20305175U1 (en) | 2003-03-31 | 2003-09-25 | Riedl, Reinhold, Dipl.-Ing., 63897 Miltenberg | Height-adjustable support for semitrailers or the like. |
| US7152848B2 (en) * | 2003-07-18 | 2006-12-26 | The Holland Group, Inc. | Telescoping leg assembly for semitrailers |
| CN2654460Y (en) * | 2003-11-12 | 2004-11-10 | 岑健萸 | Embedded type electro lifting driving machine |
| DE102004025349B4 (en) | 2004-05-19 | 2008-11-27 | Haacon Hebetechnik Gmbh | Swivel foot for a support or lifting device |
| US6926261B1 (en) * | 2004-07-26 | 2005-08-09 | Kaper Ii, Inc. | Trailer tongue jack |
| DE102005034554B4 (en) * | 2005-07-23 | 2008-07-03 | Jost-Werke Gmbh | Landing gear and assembly process |
| US7425015B1 (en) * | 2006-08-25 | 2008-09-16 | Leslie Lynn Schipman | Height adjustment hitch apparatus |
-
2006
- 2006-07-31 DE DE102006035917A patent/DE102006035917C5/en not_active Expired - Fee Related
-
2007
- 2007-07-12 PL PL07785631T patent/PL2046611T5/en unknown
- 2007-07-12 AT AT07785631T patent/ATE466753T1/en active
- 2007-07-12 WO PCT/DE2007/001257 patent/WO2008014749A1/en active Application Filing
- 2007-07-12 EP EP07785631.8A patent/EP2046611B2/en not_active Not-in-force
- 2007-07-12 US US12/375,749 patent/US8388023B2/en not_active Expired - Fee Related
- 2007-07-12 ES ES07785631T patent/ES2343284T5/en active Active
- 2007-07-12 RU RU2009106124/11A patent/RU2401753C1/en not_active IP Right Cessation
- 2007-07-12 CA CA2659434A patent/CA2659434C/en not_active Expired - Fee Related
- 2007-07-12 CN CN2007800280528A patent/CN101495347B/en not_active Expired - Fee Related
- 2007-07-12 DE DE502007003672T patent/DE502007003672D1/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6099016A (en) * | 1997-07-21 | 2000-08-08 | The Binkley Company | Landing gear |
| DE19836635A1 (en) * | 1998-08-13 | 2000-02-24 | Jost Werke Ag | Load-bearing prop for fifth wheel of semitrailer incorporates motor or hand winding gear with spur reduction gear and bevel drive for spindle raising and lowering foot |
| US20030089898A1 (en) * | 2001-11-15 | 2003-05-15 | Straw Shane A. | Screw nut holder for heavy-duty jack assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2343284T5 (en) | 2013-12-05 |
| PL2046611T3 (en) | 2010-08-31 |
| CA2659434A1 (en) | 2008-02-07 |
| ATE466753T1 (en) | 2010-05-15 |
| CA2659434C (en) | 2013-04-02 |
| ES2343284T3 (en) | 2010-07-27 |
| US8388023B2 (en) | 2013-03-05 |
| DE102006035917B3 (en) | 2007-11-22 |
| DE102006035917C5 (en) | 2009-07-30 |
| EP2046611A1 (en) | 2009-04-15 |
| CN101495347A (en) | 2009-07-29 |
| CN101495347B (en) | 2011-05-18 |
| EP2046611B1 (en) | 2010-05-05 |
| DE502007003672D1 (en) | 2010-06-17 |
| US20090250902A1 (en) | 2009-10-08 |
| PL2046611T5 (en) | 2014-01-31 |
| EP2046611B2 (en) | 2013-08-28 |
| RU2009106124A (en) | 2010-09-10 |
| RU2401753C1 (en) | 2010-10-20 |
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